Abstract: Apparatuses and methods for resource allocation are disclosed. In one embodiment, a method implemented in a network node includes selecting an available resource in a transmission time interval, TTI; determining at least one set of dedicated radio bearer, DRBs, that can be co-scheduled in the selected resource; and allocating the selected resource to at least a subset of the determined at least one set of DRBs. In another embodiment, a network node is configured to select an available resource in a transmission time interval, TTI; determine at least one set of dedicated radio bearer, DRBs, that can be co-scheduled in the selected resource; and allocate the selected resource to at least a subset of the determined at least one set of DRBs.

Abstract: A method for determining a Modulation and Coding Scheme (MCS) and power control includes determining an error rate of a communication channel between the UA and at least one of the base station and the RN. When the error rate is below a first threshold, the method includes at least one of increasing the MCS, and reducing a transmission power of the UA. When the error rate is above a second threshold, the method includes at least one of decreasing the MCS, and increasing a transmission power of the UA.

Abstract: A method for determining a Modulation and Coding Scheme (MCS) and power control includes determining an error rate of a communication channel between the UA and at least one of the base station and the RN. When the error rate is below a first threshold, the method includes at least one of increasing the MCS, and reducing a transmission power of the UA. When the error rate is above a second threshold, the method includes at least one of decreasing the MCS, and increasing a transmission power of the UA.

Abstract: A method for determining a Modulation and Coding Scheme (MCS) and power control includes determining an error rate of a communication channel between the UA and at least one of the base station and the RN. When the error rate is below a first threshold, the method includes at least one of increasing the MCS, and reducing a transmission power of the UA. When the error rate is above a second threshold, the method includes at least one of decreasing the MCS, and increasing a transmission power of the UA.

Abstract: A method is provided for an access node to perform channel estimation. The method includes, when a UE and a relay node are present in a cell with the access node, the access node receiving from the UE and from the relay node DMRS that are cyclically shifted relative to one another. The method further includes the access node performing a first channel estimation based on the DMRS that was transmitted by the UE, performing a second channel estimation based on the DMRS that was transmitted by the at least one relay node, combining the first channel estimation with the second channel estimation to derive a combined channel estimation, using the first channel estimation to demodulate control information received from the UE, and using the combined channel estimation to demodulate data received from both the UE and the at least one relay node.

Abstract: A method for providing user agent data. The method includes an access node receiving an indicator sent from a relay node as an indication that the relay node has received data from the user agent.

Abstract: Devices and methods are provided for managing hidden node interference. A communications session between a client node and an access node is affected by interference generated by a hidden relay node. The victim client node and the aggravator relay node are identified by the access node. The access node generates a set of scheduling instructions, which are then provided to the client node. The client node then uses the scheduling instructions to avoid further interference.

Abstract: In a system for allocating resources of a wireless communication system power levels of downlink (DL) communication channels and coupling losses of uplink (UL) communication channels are determined. When the power level of the DL communication channel between a base station and a UA is greater than the power levels of the DL communication channels between each of a plurality of RNs and the UA, and the coupling losses of the UL communication channel between at least one of the RNs and the UA are less than the coupling losses of the UL communication channel between the base station and the UA, a DL communication channel resource on the base station to the UA, and a UL communication channel resource on the at least one of the plurality of RNs to the UA are allocated.

Abstract: A method is provided for providing an access node with a demodulation reference signal (DMRS). The method includes, when the UE and at least one relay node are present in a cell, the relay node transmitting the DMRS on a subset of a set of resource elements in which the UE transmits the DMRS.

Abstract: A relay node including one or more components configured to encode a message to be transmitted to an access node, the message used to identify the relay node as a relay node during initialization of the relay node.

Abstract: Channel estimation and data detection in a wireless communication system in the presence of inter-cell interference is provided.

Abstract: A relay node including one or more components configured to measure a signal strength of sounding reference signals (SRS) received from a mobile station, and in response to the signal strength being above a predetermined threshold, to transmit a first request to an access node. The first request is for the access node to associate the mobile station with the relay node.

Abstract: A method and system for formulating an SINR metric for cells using only the existing RSRP and RSRQ measurements. With this method and system side information is exchanged between eNBs of an E-UTRAN using the X2 interface where the X2 interface carries the X2 Application Protocol (X2AP). The side information is introduced either within X2AP messages exchanged between eNB nodes or via modification of existing X2AP messages. Serving cell system information block (SIB) messages may also be modified or new SIB messages introduced to facilitate computation of an SNIR metric at a UE.

Abstract: A network comprising a relay node configured to transmit a first common reference signal (CRS) to a plurality of user agents (UAs) using a first plurality of physical antennas and/or virtual antennas, and an access node configured to transmit a second CRS to the UAs using a second plurality of physical antennas and/or virtual antennas, wherein the first CRS and the second CRS are combined for the same number of first and second physical antennas and/or virtual antennas. Also included is a network comprising a relay node configured to transmit a dedicated reference signal (DRS) to a UA using a first plurality of physical antennas and/or virtual antennas, and an access node configured to transmit a second DRS to the UA using a second plurality of physical antennas and/or virtual antennas, wherein the first DRS and the second DRS are transmitted at about the same time.

Abstract: A method is provided for handing over a user equipment (UE). The method includes a donor access node with which the UE is in communication via a relay node receiving UE context information from the relay node. The method further includes the donor access node using the UE context information to identify data packets that belong to the UE.

Abstract: Devices and methods are provided for managing hidden node interference. A communications session between a client node and an access node is affected by interference generated by a hidden relay node. The victim client node and the aggravator relay node are identified by the access node. The access node generates a set of scheduling instructions, which are then provided to the client node. The client node then uses the scheduling instructions to avoid further interference.

Abstract: Systems and methods for mobility parameter adjustment and mobility state estimation in heterogeneous networks are provided. The mobility parameters may be adjusted based on the cell change types associated with the mobility procedure. The mobility procedure may be a cell handover procedure or a cell reselection procedure. The cell change type may be dependent on the transmission power level of the UE's serving cell and neighboring cells. In some implementations, the UE may provide a speed information to the serving cell such that the serving eNB may prioritize or optimize the mobility procedure for the UE. The UE may also estimate its mobility state by counting the number of cell changes within certain period of time and applying scaling factors to the number of cell changes based on the associated cell change types.

Abstract: A method is provided for handing over a user equipment (UE). The method includes a donor access node with which the UE is in communication via a serving relay node receiving UE context information. The method further includes the donor access node using the UE context information to identify data packets that belong to the UE, wherein the data packets are forwarded from the serving relay node to a target relay node.

Abstract: To perform a handover of a mobile station from a source base station to a target base station, the source base station determines a delay of a connection between the source base station and the target base station. The source base station computes an action time taking into account the determined delay, the action time specifying a time when the target base station is able to allocate resources to the mobile station for the handover.

Abstract: A method for transmitting data to a user agent. The method includes a relay node receiving information from an access node, the information containing the data that is to be transmitted to the user agent and control information that the access node will use to transmit the data to the user agent. The method further includes the relay node transmitting the data to the user agent at the time the access node transmits the data to the user agent, the relay node using the control information that the access node uses to transmit the data to the user agent.